The client sells seasonal products specifically diaries, planners and calendars, and promotes them through a newsletter section. She wants to update several products names without affecting the node URLs, and she wants to display the next year text in text areas and meta-tag fields of targeted nodes in different content types.
The module does all that without touching a button - all on autopilot. It uses preprocess hooks and I named it Seasonal Display Page because it can easily accommodate more custom features making it suitable for wider use or can even be contributed on Drupal.org. It can be adapted for changing a banner or logo background twice a year, for example.